package com.atguigu.gulimall.product.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.atguigu.common.constant.ProductConstant;
import com.atguigu.common.to.SkuReductionTo;
import com.atguigu.common.to.SpuBoundTo;
import com.atguigu.common.to.es.SkuEsModel;
import com.atguigu.common.to.es.SkuHasStockVo;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.product.entity.*;
import com.atguigu.gulimall.product.feign.CouponFeignService;
import com.atguigu.gulimall.product.feign.SearchFeignService;
import com.atguigu.gulimall.product.feign.WareFeignService;
import com.atguigu.gulimall.product.service.*;
import com.atguigu.gulimall.product.vo.*;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    SpuInfoDescService spuInfoDescService;

    @Autowired
    SpuImagesService spuImagesService;

    @Autowired
    AttrService attrService;

    @Autowired
    ProductAttrValueService productAttrValueService;

    @Autowired
    SkuInfoService skuInfoService;

    @Autowired
    SkuImagesService skuImagesService;

    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    CouponFeignService couponFeignService;

    @Autowired
    CategoryService categoryService;

    @Autowired
    BrandService brandService;

    @Autowired
    WareFeignService wareFeignService;

    @Autowired
    SearchFeignService searchFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {
        // 1、保存spu基本信息 pms_spu_info
        SpuInfoEntity infoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo, infoEntity);
        infoEntity.setUpdateTime(new Date());
        infoEntity.setCreateTime(new Date());
        this.saveBaseSpuInfo(infoEntity);

        // 2、保存spu的描述图片 pms_spu_info_desc
        SpuInfoDescEntity spuInfoDescEntity = new SpuInfoDescEntity();
        spuInfoDescEntity.setSpuId(infoEntity.getId());
        List<String> decript = vo.getDecript();
        spuInfoDescEntity.setDecript(String.join(",", decript));
        spuInfoDescService.saveSpuInfoDesc(spuInfoDescEntity);

        // 3、保存spu的图片集 pms_spu_images
        List<String> images = vo.getImages();
        spuImagesService.saveImages(infoEntity.getId(), images);

        // 4、保存spu的规格参数 pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(item -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(item.getAttrId());
            AttrEntity attrEntity = attrService.getById(item.getAttrId());
            valueEntity.setAttrName(attrEntity.getAttrName());
            valueEntity.setAttrValue(item.getAttrValues());
            valueEntity.setQuickShow(item.getShowDesc());
            valueEntity.setSpuId(infoEntity.getId());
            return valueEntity;
        }).collect(Collectors.toList());
        productAttrValueService.saveProductAttr(collect);


        // 5、保存spu的积分信息 gulimall-sms -> sms_spu_bounds
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds, spuBoundTo);
        spuBoundTo.setSpuId(infoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo);
        if (r.getCode() != 0) {
            log.error("远程保存spu积分信息失败");
        }

        // 6、保存当前spu对应的所有sku信息
        List<Skus> skus = vo.getSkus();
         skus.forEach(item -> {
            String defaultImage = "";
            for (Images image : item.getImages()) {
                if (image.getDefaultImg() == 1) {
                    defaultImage = image.getImgUrl();
                }
            }
            SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
            BeanUtils.copyProperties(item, skuInfoEntity);
            skuInfoEntity.setBrandId(infoEntity.getBrandId());
            skuInfoEntity.setCatalogId(infoEntity.getCatalogId());
            skuInfoEntity.setSaleCount(0L);
            skuInfoEntity.setSpuId(infoEntity.getId());
            skuInfoEntity.setSkuDefaultImg(defaultImage);
            // 6.1 sku的基本信息 pms_sku_info
            skuInfoService.saveSkuInfo(skuInfoEntity);

            Long skuId = skuInfoEntity.getSkuId();

            List<SkuImagesEntity> list = item.getImages().stream().map(img -> {
                SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                skuImagesEntity.setSkuId(skuId);
                skuImagesEntity.setImgUrl(img.getImgUrl());
                skuImagesEntity.setDefaultImg(img.getDefaultImg());
                return skuImagesEntity;
                    }).filter(entity -> {
                return !StringUtils.isEmpty(entity.getImgUrl());
            }).collect(Collectors.toList());
            // 6.2 sku的图片信息 pms_sku_images
            skuImagesService.saveBatch(list);

            List<Attr> attr = item.getAttr();
            List<SkuSaleAttrValueEntity> collect1= attr.stream().map(sale -> {
                SkuSaleAttrValueEntity skuSaleAttrValueEntity = new SkuSaleAttrValueEntity();
                BeanUtils.copyProperties(sale, skuSaleAttrValueEntity);
                skuSaleAttrValueEntity.setSkuId(skuId);
                return skuSaleAttrValueEntity;
            }).collect(Collectors.toList());
            // 6.3 sku的销售属性 pms_sku_sale_attr_value
            skuSaleAttrValueService.saveBatch(collect1);

            // 6.4 sku的优惠满减信息 gulimall-sms
            SkuReductionTo skuReductionTo = new SkuReductionTo();
            BeanUtils.copyProperties(item, skuReductionTo);
            skuReductionTo.setSkuId(skuId);
            if (skuReductionTo.getFullCount() > 0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0")) == 1) {
                R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                if (r1.getCode() != 0) {
                    log.error("远程保存sku优惠信息失败");
                }
            }
        });





    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity spuInfoEntity) {
        baseMapper.insert(spuInfoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)) {
            wrapper.and(w->{
                w.eq("id", key).or().like("spu_name", key);
            });
        }

        String status = (String) params.get("status");
        if (!StringUtils.isEmpty(status)){
            wrapper.eq("publish_status", status);
        }

        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId) && !"0".equalsIgnoreCase(brandId)) {
            wrapper.eq("brand_id", brandId);
        }

        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId) && !"0".equalsIgnoreCase(catelogId)) {
            wrapper.eq("catalog_id", catelogId);
        }

        IPage<SpuInfoEntity> page = this.page(
            new Query<SpuInfoEntity>().getPage(params),
                wrapper
        );

        return new PageUtils(page);
    }

    @Override
    public void spuUp(Long spuId) {
        // 查出当前spuid对应的所有sku信息，品牌的名字
        List<SkuInfoEntity> skus = skuInfoService.getSkusBySpuId(spuId);
        List<Long> skuIds = skus.stream().map(item -> {
            return item.getSkuId();
        }).collect(Collectors.toList());

        // 查询当前sku所有可以被用来检索的规格属性
        List<ProductAttrValueEntity> baseAttrs = productAttrValueService.baseAttrlistforspu(spuId);
        List<Long> attrIds = baseAttrs.stream().map(attr -> {
            Long attrId = attr.getAttrId();
            return attrId;
        }).collect(Collectors.toList());
        // 查出attr表并过滤searchType == 1
        List<Long> searchAttrIds = attrService.selectSearchAttrs(attrIds);
        // 从baseAttrs中筛选出符合条件的id（searchAttrIds)
        Set<Long> idSet = new HashSet<>(searchAttrIds);
        List<SkuEsModel.Attrs> attrsList = baseAttrs.stream().filter(item -> {
            return idSet.contains(item.getAttrId());
        }).map(item -> {
            SkuEsModel.Attrs attrs1 = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(item, attrs1);
            return attrs1;
        }).collect(Collectors.toList());



        // 发送远程调用，库存系统查询是否有库存
        Map<Long, Boolean> stock = null;
        try {
            R hasStock = wareFeignService.getSkusHasStock(skuIds);
//            List<SkuHasStockVo> skuHasStock = (List<SkuHasStockVo>) hasStock.get("data");
            Object data = hasStock.get("data");
            String s = JSON.toJSONString(data);
            List<SkuHasStockVo> skuHasStock = JSON.parseObject(s, List.class);
            stock = skuHasStock.stream().collect(Collectors.toMap(SkuHasStockVo::getSkuId, item -> item.getHasStock()));
        }catch (Exception e) {
            log.error("库存服务查询异常：原因{}",e);
        }

        // 封装每个sku信息
        Map<Long, Boolean> finalStock = stock;
        List<SkuEsModel> upProducts = skus.stream().map(sku -> {
            // 组装数据
            SkuEsModel esModel = new SkuEsModel();
            BeanUtils.copyProperties(sku, esModel);
            esModel.setSkuPrice(sku.getPrice());
            esModel.setSkuImg(sku.getSkuDefaultImg());

            // 设置库存
            if (finalStock == null) {
                esModel.setHasStock(true);
            } else {
                esModel.setHasStock(finalStock.get(sku.getSkuId()));
            }

            // 热度评分 0
            esModel.setHotScore(0L);
            // 查询品牌和分类的名字信息
            BrandEntity brandEntity = brandService.getById(esModel.getBrandId());
            esModel.setBrandName(brandEntity.getName());
            esModel.setBrandImg(brandEntity.getLogo());
            CategoryEntity categoryEntity = categoryService.getById(esModel.getCatalogId());
            esModel.setCatalogName(categoryEntity.getName());
            // 设置检索属性
            esModel.setAttrs(attrsList);

            return esModel;
        }).collect(Collectors.toList());

        // 将数据发送给es进行保存
        R r = searchFeignService.productStatusUp(upProducts);
        if (r.getCode()==0) {
            // 调用成功，修改当前spu状态
            SpuInfoEntity spuInfoEntity = this.getById(spuId);
            spuInfoEntity.setPublishStatus(ProductConstant.StatusEnum.SPU_UP.getCode());
            spuInfoEntity.setUpdateTime(new Date());
            this.updateById(spuInfoEntity);
        } else {
            // 调用失败
            // TODO 重复调用，接口幂等性
        }
    }

    @Override
    public SpuInfoEntity getSpuInfoBySkuId(Long skuId) {
        SkuInfoEntity byId = skuInfoService.getById(skuId);
        Long spuId = byId.getSpuId();
        SpuInfoEntity byId1 = getById(spuId);
        return byId1;
    }


}